Re: [TCML] Calculators

[Ed Phillips <evp@xxxxxxxxxxx>]

There isn't any such formula because there are many different thickness 
of 'enamel' so you need the specs on the particular wire you or using or 
else if you already have it you can measure it with a micrometer.  For a 
given type of wire the thickness also varies with wire size.  Remember 
also that 'a nice tight winding' really isn't very tight and a 'winding 
factor' [wire diameter divided by actual spacing] is typically around 
0.95.  I can't tell if you already have a coil and are interested in 
determining its characteristics but of so the resistance per unit length 
is going to be close for any copper wire of the same # so you can always 
find total length of wire by measuring the resistance accuratey and 
using the appropriate resistance for that wire size.

Ed

Yurtle Turtle wrote:

> It's probably more of a set thickness than a formula, and you have single build, double build, etc.
>
>
>
> ________________________________
> From: Brian Hall <brianh4242@xxxxxxxxxxx>
> To: tesla@xxxxxxxxxx 
> Sent: Thursday, February 16, 2012 6:22 PM
> Subject: RE: [TCML] Calculators
>
>
> I would like to see a calculator for enamel coated copper wire (that we all know and love to use for secondary coils) that for a given wire gauge, it gives the thickness of the enamel. That enamel thickness vs. the copper thickness of the wire can then be used to give accurate spacing between the wires of your nice tight inductor windings, and a better measure of inductance.
>
> Anyone know of a formula for that?  It would be through the cross section of the wire with a radius and circumference and probably pi ... 
>
>
>
> ----------------------------------
>
> Brian Hall  
>
>
>
>
>  
>
> >  
> > The idea of this was to make a big calculator resource that one could
> > download and use offline, kinda like sam's laser faq.
> > I suppose it doesn't really matter where it's hosted, considering the site
> > uses frames and is thus 100% google anti-friendly.
> >
> > If anyone would like to collaborate, the source code is pretty simple
> > jquery. http://calc.teravolt.org/
> >
> > Just add boxes and modify the code to do the calculating :-). It takes
> > about 8 minutes to make 1 calculator.
> >
> >
> > On Wed, Feb 15, 2012 at 9:58 PM, Bart B. Anderson <bartb@xxxxxxxxxxxxxxxx>wrote:
> >
> >    
> >
> > > Hehe, I was thinking of entering all the code for javatc....
> > > It just seemed really funny when I thought that :-) !
> > >
> > > Ignore me, it's all good... was just having fun..
> > >
> > > Take care,
> > > Bart
> > >
> > >
> > > On 2/15/2012 6:28 PM, Grenadier wrote:
> > >
> > >      
> > >
> > > > Huh?
> > > >
> > > > On Wed, Feb 15, 2012 at 8:12 PM, Bart B. Anderson<bartb@classictesla.**
> > > > com <bartb@xxxxxxxxxxxxxxxx>>wrote:
> > > >
> > > >  ROFL!!:-) .. Your a funny man.
> > > >        
> > > >
> > > > > On 2/15/2012 4:25 PM, Grenadier wrote:
> > > > >
> > > > >  http://calc.teravolt.org/
> > > > >          
> > > > >
> > > > > > Request a calculator :-)
> > > > > > You need to supply the formula though!
> > > > > >            
>
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